We held a chat Friday about the dilemmas of where aging parents should live.  Our experts included Jason Karlawish, co-director of the Penn Memory Center; Barry Jacobs and Julia Mayer, psychologists whose book, Meditations for Caregivers: Practical, Emotional, and Spiritual Support for You and Your Family, was published recently; and Holly Lange, president and CEO of Philadelphia Corporation for Aging. A transcript is below.